Python - 将表情符号字符写入日志文件

Question

我在将表情符号字符写入 .log 文件时遇到困难。这是我的代码的相关片段:

with open("testLog.log", "a") as myfile:
    print (message.content)                  #print to console - for debugging only
    print (message.content.encode('utf-8'))  #print to console - for debugging only
    myfile.write(message.content)

这是当 message.content = 'hello there! 时输出到我的控制台的内容! 👍'

hello there! 👍                              
b'hello there! \xf0\x9f\x91\x8d'
Ignoring exception in on_message
Traceback (most recent call last):
    File "C:\path\to\file\file.py", line 29, in on_message
    myfile.write(message.content)
    File "C:\Python\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
    UnicodeEncodeError: 'charmap' codec can't encode character '\U0001f44d' in position 13: character maps to <undefined>

我环顾四周并尝试了一些解决方案，但无济于事。这个错误是由于我的日志文件是如何编码的吗？如果是这样，我如何更改编码以允许使用 utf-8 字符？

一个允许但不是优选的解决方案是一种检测字符串中是否存在这些字符的方法，这样我就可以不将内容写入日志。

Answer 1

这应该可以解决您的问题。来自:https://stackoverflow.com/a/43813727/6579239

with open("testLog.log", "a") as myfile:
    print (message.content)                  #print to console - for debugging only
    print (message.content.encode('ascii', 'ignore').decode('ascii'))  #print to console - for debugging only
    myfile.write(message.content)